Last season saw a lot of turnover in the NFL. The Philadelphia Eagles, a last-place team in 2016, rebounded to win the NFC East and the Lombardi Trophy. The Jacksonville Jaguars also went from worst-to-first, winning their division for the first time since 1999 and nearly joining the Eagles in the Super Bowl. That's not even counting the Los Angeles Rams and Carolina Panthers winning 10 games combined in 2016 and then 11 games apiece in 2017.
The NFL is a crazy league, and you can almost always count on a handful of teams going from the basement to the penthouse each season.